diff --git a/flow-control.js b/flow-control.js
index 1e28c3aa..e7f55960 100755
--- a/flow-control.js
+++ b/flow-control.js
@@ -1,19 +1,44 @@
 function basicTeenager(age) {
-
+    if(13<=age && age<=19){
+      return "You are a teenager!"
+    }
 }
 
 function teenager(age) {
-
+  if(13<=age && age<=19){
+    return "You are a teenager!"
+  }
+  return "You are not a teenager"
 }
 
 function ageChecker(age) {
-
+  if(age<=12){
+    return "You are a kid"
+  }
+  else if (13<=age && age<=19){
+    return "You are a teenager!"
+  }
+  else {
+    return "You are a grownup"
+  }
 }
 
 function ternaryTeenager(age) {
-
+    return 13<=age && age<=19 ? "You are a teenager":"You are not a teenager"
 }
 
 function switchAge(age) {
-
+    switch(age){
+      case 13:
+      case 14:
+      case 15:
+      case 16:
+      case 17:
+      case 18:
+      case 19:
+        return "You are a teenager"
+      default:
+        return "You have an age"
+
+    }
 }